Coke oven



July 22, 1930. H` SQHRDER 1,770,998

COKE'OVEN Filed Nov. 28, 1925 2. Sheets-Sheet l y s l2 H. SCHRDER July22, 1930.

COKE OVEN Filed Nov. 28, 1925 2 Sheets-Sheet 2 r M@ im n 2; wmf/M .,w H@

Patented July 22, 1930 UNITED STATES HUGO SCHRDER, or EssEN-oN-THE-RUHR,GERMANY COKE OVEN Application sled November 2s, 1925, serial N0. 71,877,ail-i1 in Germani April 12, 1924.

My invention relates to improvements 'in coke ovens, and moreparticularly in colte ovens of the type in which the coking and heatingchambers are disposed above the re- 5 generators. The object of theimprovements is to provide a coke oven lof this type in which the wearof the brick-work of the coking and heat-ing chambers and theregeneratorsis reduced, and with this object in View my in- 10 ventionconsists in erecting the coking and heating chambers on vaults disposedlongitudinally of the coling chambers and having a span such that eachvault is disposed below a plurality of heating and coking chambers, 15and disposing the regenerator within the said vaults, the regeneratordisposed in each vault cooperatingr with the heating and coking chambersdisposed above the same. In the preferred construction each vaultcomprises 20 two arches disposed one above the other, the

lower arch being capable of a certain expansion. In my improved oven theregenerators are separated from one another by strong walls forming apart of the vaults, and they 5 are separate from one another in theoperation of the oven. The coking and heating chambers are supported ona rigid base provided by the vaults, so that the walls thereof, whichare necessarily thin, are in a Vless degree subject V to destruction bycracks. Further, the brick-Work of the regenerators is not subject todestruction by the brick-work of the coking and heating chambers bearingthereon, the said brick-work being supported 5 exclusively on thevaults. r

For the purpose of explaining the invention two examples embodying thesame have been shown in the accompanying drawings, in which the samereference characters have been used in all the views to indicatecorrespending part-s. In said drawings,

Fig. l, is a sectional elevation taken on the line A1--1 of Fig. 2,

Fig. 2, is a sectional elevation taken on the line 2-2 of Fig. l,

Fig. 3, is a sectional elevation taken on the line 3-3 of Fig. 4 andshowing a modification, and

Fig. 4, is a sectional elevation taken on the line 4 4 of Fig. 3.

In the exampleshown in Figs. l and 2 the coke oven comprises a baseindicated Ias a whole by the letter A and theV coking chambers c andheating passages or fluesj m, d, g, lc, 71 z', n, indicated as a wholeby the letter B. The base A consists of a rigid horizontal top plate Cand vaults comprising rigid .walls a and arches b. supporting the saidplate C. Each vault comprises two arches and Z9', the lower arch b beingcapable of a certain eX- pansion independently of the upper arch Thevaults a, b, Z2 are disposed longitudinally of the colingchambers. c,and their span is such thatthree coking chambers and heating passagesare disposed above each'` vault. Bv

thus constructing the base A, the walls of the coking chambers havea'rigid support thereon so that they are not injured by the yielding ofthe said base. Within each ,vault there is a regenerator e, f,and each4regener- P ator cooperates with the set of heating passages disposedabove the same. In` the ex-` ample shown in the igures the heatingpassages Vor flues al and g are connected to the regeneratorse, and theheating passages or flues z, and Y'areconnected to the regenerators Theheating passages m and `n are connected respectively to the regeneratorse and f and the regenerators adjacent thereto.

Therefore each regenerator cooperates with three heating passages. Theregenerators are separated by a transverse -wall o` into-sections e1 ande2 (Fig. 2). At their ends the regenerators are connected with air andwaste heat passages p, r and passages, s and t connected with fresh air,and waste .heat channels u and v... The passages u and e arealternately used for .passing air for supporting. combustion .throughthe previously heated regenerator sections e1 and 2te thefpaspoints awayfrom the inner ends thereof. The bottom parts of the regeneratorsections located at the same sides of the oven are connected with oneanother through passages Z insuring transmission of the heat from oneregenerator to the other one.

In the modification shown in Figs. 3 and 4 the heating passages or fluesZ1 are connected with the regenerators e3, f3 through collectingpassages e, and the regenerators are not subdivided by transverse Walls,such as 0. Above the regenerators there are horizontal collectingpassages r1 and p1 Which are connected with the fines sc that theheating gases said coking and heating chambers which arc disposed abovethe upper arch, each lower arch being capable of expansion independentofthe structure resting thereupon, the length of the arches beingparallel with the length of said coking and heating chambers.

In testimony whereof I hereunto affix my signature.

HUGO SCHRDER.

flow through the flues successively in upward and downward direction.The gas is distributed Within the regenerator by regulating the airpressure or draught.

By combining adjacent heating passages or flues in groups andcomparatively large reoenerators I am enabled to construct a rigid baseproviding a strong support for the thin heating Walls, and to separatethe regenerators by strong Walls, so that the regenerators are separatefrom each other also in continuous operation of the oven.

My improved structure may also be used in compound coke ovens, that isovens adapt-- ed to be heated by means of a preheated low grade gas. Inthis case in the regenerator sections of one side the regenerators forheating gas and for air are alternately arranged, While at the oppositeside the Waste gases are passed to the stack through all the regeneratorsections.

In many cases the regenerator systems of old plants can bereconstructedaccording to the principles of my invention.

I claim:

l. A coke oven having a series of alternately-disposed coking chambersand heating chambers therefor arranged side by side, said chambers beingelongated horizontally, a regenerator disposed beneath the series ofcoking and heating chambers and of awidth to be coextensive With thelength of the series of chambers, said regenerator communicating withthe aforesaid heating chambers, the regenerator also extendingsubstantially parallel to the coking and heating chambers.

2. A coke oven having a series of alternately-disposed colring chambersand heating chambers therefor arranged side by side, said colring andheating chambers being elongated horizontally, regenerator chambersdisposed beneath theseries of colring and heating chambers and of acombined Width to be substantially coextensive With the length oftheseries, the regenerator chambers communicating with the said heatingchambers each of said regenerator chambers efit-ending substantiallyVparallel to the coking and heating chambers, each of said regeneratorchambers having a plurality 0f superposed arches, the upper of whichsupports

